Cup-shaped burner for liquid fuel with combustion cup



Feb. 7, 1928. v 1,658,655

w. RUEGSEGGER CUP SHAPED BURNER FOR LIQUID FUEL WITH COMBUSTION CUPFiled April 6, 1927 INVENTOR.

407 115936? er BY W 4, $854 A TTORNEYS.

Patented Feb. 7, 1928.

UNITED STATES WALTER BUEGSEGGER,

CUP-SHAPED BURNER PATENT OFFICE,

OF LUGANO, SWITZERLAND, ASSIGNQR 3E0 THE FIBM A. G. PRIOR, F GLABUS,SWITZERLAND.

FOR LIQUID FUEL WITH COMBUSTI'ON CUP;

Application filed April 6*, 1927, Serial No. 181,567, and in GermanyDecember 4, 1926.

invention relates to a cupshaped burner for liquid fuel with acombustion cup, in the bottom of which terminate oil supply conduits andthe side walls of which are provided with air inlet apertures, this cupbeing surrounded by a casing, which forms with the cup a chamber forpreheating the combustion air. The object of the invention is to providea burner of this class embodying improved features for imparting adefinite direction to the flame. Such a burner can be used in heatingfurnaces, boilers, baking ovens or any other heat generating apparatus,and does not require to T be centrally located in the furnace, but canbe set at any place best suited for a simple piping arrangement sincethe flame can be directed towards any desired point. It can be used withadvantage installations which have been originally built for wood orcoal burning and are now converted into oil burners.

The accompanying drawing illustrates by The present way of example oneconstructional form of.

I the invention.

Figure l is a horizontal section of a baking oven in which theconstructional form is embodied.

Figure 2 is, a section through lI-II of Fig. 1. 4

Figure 3 represents a modification.

1 is a baking oven intended to be heated directly by wood or coal; 2 isthe base of the oven. 3 is the door and l the flue pipes, communicatingwith the chimney. The burner 5, which is inserted inside the oven at thebottom thereof, consists of two straightportions disposed at any desiredangle to one another one facing the lefthand flue, the other theright-hand flue. It has a rectangular section and its inner cup 6 isenclosed by a casin 7, which forms with the cup a closed chamber 8, intowhich the compressed air enters through the pipe 9 communicating with afan. lhe liquid fuel flows into the cup 6 through two pipes 10 (morethan two may also be provided) which pass through the bottom of the cup.11 is therefore in such anoverfiow pipe. 12 is a plate welded to the cup6 and which prevents the bottom of the cup from being too greatlycooled. The air passes out of the chamber 8 into the cup 6 through theapertures 13. In the wall 14: of the cup 6 are provided two rows ofthese apertures, those of the lower row being staggered with respect tothose of the upper row. In this way more air will enter through thiswall than through the opposite wall, for the purpose of imparting adefinite direction to the flame. Naturally three rows of apertures mightbe provided in the wall 14 and two rows in the other walls and so on.

In the modification shown in Fig. 3 the burner is of arc shape when seenin plan view. It may also be of circular form.

The burner may also be used in central heating installations; in thiscase the oil and the compressed airfor combustion may be regulated by atemperature regulator. Instead of being located where indicated by a,the burner may also be located at b or c.

I claim:

1. A liquid fuel burner having a cupshaped combustion chamber incommunication with a fuel supply, the side walls of said combustionchamber provided with a plurality of air inlet apertures, and one ofsaid side walls having a greater number of 1 said air inlet aperturesthan the other walls,

whereby a definite direction is imparted to the flame of the burner.

2. A liquid fuel burner having a cup shaped combustion chamber incommunication with a fuel supply, said combustion chamber comprising tworectangular cup sections forming an angle one with the other, aplurality of air inlet apertures formed in the side walls of saidcombustion chamber and one of the angular side walls provided with agreater number of said air inlet apertures than the opposite walls,whereby the flame of the burner is directed towards two difierentpoints.

In testimony whereof I aflix my signature.

'WALTER RUEGSEGGERO

